Allow some aliases to work on empty commits

git/.gitconfig

@@ -5,7 +5,7 @@
   hist-tags = log --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr)%Creset' --abbrev-commit --date=relative
   most-recent-by-branch = for-each-ref --sort=committerdate refs/heads/ --format='%(HEAD) %(color:yellow)%(refname:short)%(color:reset) - %(color:red)%(objectname:short)%(color:reset) - %(contents:subject) - %(authorname) (%(color:green)%(committerdate:relative)%(color:reset))'
   root = rev-parse --show-toplevel
-  add-trailer = commit --no-edit --amend --trailer
+  add-trailer = commit --allow-empty --no-edit --amend --trailer
 
 
 [commit]

zsh/.config/zsh/aliases

@@ -21,7 +21,7 @@ alias gaa="git add --all"
 alias gap="git add --patch"
 alias gb="git branch"
 alias gc="git commit"
-alias gca="git commit --amend"
+alias gca="git commit --amend --allow-empty"
 alias gcl="git commit -m 'Linting'"
 alias gcn="git commit --allow-empty --message 'noop'"
 alias gco="advanced-git-checkout"
@@ -55,7 +55,7 @@ alias grc="git rm --cached"
 alias grh="git reset --hard"
 alias grm="git rm"
 alias gst="git-since-last-tag"
-alias gack='git log --pretty="%an <%ae>" | sort -u | fzf | xargs -I "{}" git add-trailer "Co-authored-by: {}"'
+alias gack='git log --pretty="%an <%ae>" | sort -u | fzf | xargs --null -I "{}" git add-trailer "Co-authored-by: {}"'
 alias gup="git-branch-delete-merged"
 alias Grep='grep'
 alias l="ls"